I wanted to know what oil everybody likes to use? Personally I found that summertime oil for me is royal purple 15w-40 reaches over 100° in oklahoma and winter oil is either 5w-30 or 10w-30. Gets somewhat cold here in Oklahoma too. Be sure to chime in on what oil you like to use and you're reason
Happy motoring guys!!

just seen this thread and I really like it. mostly because I was just thinking of asking the same thing as the 1st person already has.
My question is the following, "again, I don't want to hijacked the thread or anything. But seeing how this one is already made. I see no reason to open another one."...

I have always use the best of best oil's when it comes to my car.
Royal Purple Synthetic 5w30 with a k&n oil filter for an all year round.

But lately it has been getting colder and temps keep dropping as days go by. I've also noticed the "famous" lifter/HLAS a bit more than before because of the cold start ups. and I just feel that the 5w30 weight although it is synthetic brand. Is just not doing it's just as good. I need some suggestions here guys.
I'm do for an oil chance here in the nxt week. and I would like to put something nice and a treatment such an oil stabilizer or something like that, to help the HLAS and such. I know that I would still like to keep using Synthetic just the sure of what weight thou?...or should I just switch to an all different brand such as Mobil 1 Synthetic and start using a different weight then...or go back to just regular non-synthetic...or....or...so many options grrr!!

Klze I've had to use an oil stabilizer before, I went with Lucas I believe. I know royal purple is such a great oil and I use it for everything I have. Never let me down but you know how these lifters are they will tick no matter what haha. But I say keep your royal purple in, do some oil stabilizer. It helped my de a whole bunch

well RP does have diiferent weights on their synthetic oils thou. Should I still stick with the same old 5w30 still and use the Lucas Synthetic oil stabilizer as well...or should I just go to a different weight or whatever? im sorta confussed here to say the least man, but thanks for the quick and nice reply.

I saw a video showing the viscosity of royal purples 5-30 and a 5-40 of another brand. The rp lubricated and held its own against the 40 weight at op temp. Im not quite sure on the zinc consistency of rp or anything though

These cars dont have race engines.. Royal purple is throwing money away on a motor that would last 200k on walmart oil.

Back when I was dumb I bought royal purple.. did the change. About 10miles down the road a oil sender line to my oil gauge broke..and leaked all my new royal purple oil on to the ground..
Thats the last time I bought that shit.